نتایج جستجو برای: while under deficit irrigation

تعداد نتایج: 2066132  

Abdollah Ghasemi Pirbalouti Elham Maghsoudi Hossein Abbaspour, Sakine Saeidi-Sar

Sage (Salvia officinalis L.) is cultivated worldwide especially in Mediterranean regions in which the leaves of this herb are widely used in pharmaceutical and food industries. Brassinolides and paclobutrazol are naturally occurring substances which modulate plant growth and development events and have been known to improve the crops tolerance to biotic and abiotic stresses. The effects of spra...

2018
Dunsfort N Malejane Peter Tinyani Puffy Soundy Yasmina Sultanbawa Dharini Sivakumar

This study investigated the effect of deficit irrigation at three management allowable depletion levels (MAD) 25%, 50%, and 75% on phytochemicals, ascorbic acid, antioxidant activity, glucose, fructose, and fresh and dry mass in two green leafy lettuce cultivars (Lollo Bionda and Vera) at harvest. Genotype response was observed during deficit irrigation on fresh and dry mass at harvest. Vera re...

2016
Sikander Pal Jiangsan Zhao Asif Khan Narendra Singh Yadav Albert Batushansky Simon Barak Boris Rewald Aaron Fait Naftali Lazarovitch Shimon Rachmilevitch

Dwindling water resources combined with meeting the demands for food security require maximizing water use efficiency (WUE) both in rainfed and irrigated agriculture. In this regard, deficit irrigation (DI), defined as the administration of water below full crop-water requirements (evapotranspiration), is a valuable practice to contain irrigation water use. In this study, the mechanism of paclo...

Journal: :پژوهش های تولید گیاهی 0
مونا پوردهقان دانشجوی کارشناسی ارشد زراعت دانشگاه تربیت مدرس سید علی محمد مدرس ثانوی استاد گروه زراعت دانشگاه تربیت مدرس فائزه قناتی دانشیار دانشکده علوم گیاهی، دانشگاه تربیت مدرس سمیه کرمی دانشجوی کارشناسی ارشد زراعت دانشگاه تربیت مدرس

in order to investigate the effect of hexaconazole (hex) on the increasing tolerance to water deficit stress of two soybean (glycine max l.) cultivars, an experiment was conducted in faculty of agronomy of tarbiat modares university as factorial experiment in randomized complete block design arrangement. factors examined in this study were included soybean cultivars (l17 and clark63), hex conce...

N. Patel T.B.S. Rajput

Indiahas the largest area under onion (Allium cepa) crop but its average productivity (14.21 t ha-1) is considerably lower than the world’s average of 19.4 t ha-1. Besides low productivity, irrigation efficiencies are also very low i.e. 30-35% in India. Managing onion crop with less than adequate irrigation water availability is a challenge in several parts of the country. Options of i) deficit...

Journal: :پژوهش های زراعی ایران 0
آرش پاکمهر مهدی راستگو فرید شکاری جلال صبا اسماعیل زنگانی

effects of seed priming by salicylic acid on some morpho-physiologic characteristics and yield of cowpea (vigna unguiculata l.) cultivar “parastou” was investigated under water deficit. experiment was conducted as a split block design with 3 replications in 2008-2009 at research farm of zanjan university. factors were including drought stress as a main factor in 2 levels (irrigation, water defi...

The present study aims to assess the effect of Thiobacillus and sulfur on morphological and biochemical properties of medicinal pumpkinproperties under deficit irrigation based on a split-plot design. For this purpose, water stress was applied as a main factor in three levels (control, no irrigation in flowering stage, no irrigation in fruiting), and Thiobacillus and sulfur fertilizers as sub-p...

Journal: :journal of agricultural science and technology 2010
e. mamnouie r. fotouhi ghazvini m. esfahani b. nakhoda

the effects of water deficit on grain yield, yield components and the physiological char-acteristics of barley (hordeum vulgare l.) varieties were studied in a split plot design dur-ing the 1999-2000 growing season in karaj, iran. five irrigation levels [0, 25, 50, 75, and 100% crop water requirements (cwr)] and six barley varieties karoon kavir , rei-hani(drought tolerant), torkman , c-74-9 (i...

بشارت, سینا, حسنی, عباس, رضاوردی نژاد, وحید, شبانیان اصل, مریم,

This experiment was conducted to determine evapotranspiration, crop coefficient and water use efficiency of cucumber and tomato for a period of six months in the Resarch Greenhouse of Urmia University. Daily evapotranspiration of cucumber, tomato and reference crop was measured using lysimeter method. Based on the results, cucumber evapotranspiration for growth period of 130 days was 272.4 mm a...

Journal: :تولید گیاهان زراعی 0

to investigate the relationship between different traits, discover factors affecting this relationship and to identify components of seed yield in cultivated and wild safflower genotypes, this investigation was conducted at isfahan university of technology research farm under two different water regimes during 2008. significant differences were observed between genotypes belonged to the two spe...

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